Couple of shakedown runs...
Couple of shakedown runs... I went to the track last night. Weather looked ok when we left but when we got there it was on the virge of pouring down, but I still got a couple runs in. This being the first time I ever ran the setup I didn't know how it would handle. I was bogging horrible out of the hole, 2.2 60s 
, next time I'll know how to better launch it. I had to lift out of the throttle at the top of 3rd and 4th gears on both runs, the car started running lean on the top end. I had never noticed this on the street, but for some reason teh track always has its little greamilins.
Anyway at 4 psi it ran a 12.8 at 116 and then a 12.7 at 117. 2.2 60 ft on both runs. Now Im looking to strengthen the fuel system and get it tuned so I don't have to worry about that anymore and turn up the boost
Right now all I have fuel wise is a FMU and a Walbro 255 intank HP pump. Stock everything else. I still dont' have a fuel pressure gauge so I don't know if pressure is dropping or what. I have spare pumps to work with so I might throw in a dual intank setup or add an inline HP pump for added pressure support. I also want to add some 60# mototrons and get it tuned. Although even with all this I wonder about hwo the stock fuel lines/configuration will do? At what level should I look into running custom lines/rails and what not?
, next time I'll know how to better launch it. I had to lift out of the throttle at the top of 3rd and 4th gears on both runs, the car started running lean on the top end. I had never noticed this on the street, but for some reason teh track always has its little greamilins. Anyway at 4 psi it ran a 12.8 at 116 and then a 12.7 at 117. 2.2 60 ft on both runs. Now Im looking to strengthen the fuel system and get it tuned so I don't have to worry about that anymore and turn up the boost
Right now all I have fuel wise is a FMU and a Walbro 255 intank HP pump. Stock everything else. I still dont' have a fuel pressure gauge so I don't know if pressure is dropping or what. I have spare pumps to work with so I might throw in a dual intank setup or add an inline HP pump for added pressure support. I also want to add some 60# mototrons and get it tuned. Although even with all this I wonder about hwo the stock fuel lines/configuration will do? At what level should I look into running custom lines/rails and what not?
That's good mph for only 4psi...that thing is gonna fly with good 60 foots, more boost and a tune 
I ran high 11's with less mph N/A... so your car definitely has it as is now.
I do recommend the 60's from Mototron... they have great driveability and can support plenty of power... (MM made 775/841rw on them).
Some injectors, a 1:1 fp regulator and fp guage should be your next things to get... and i think you can safely runn 600rwhp with that... might want to look into some form of alky injection.
I ran high 11's with less mph N/A... so your car definitely has it as is now. I do recommend the 60's from Mototron... they have great driveability and can support plenty of power... (MM made 775/841rw on them).
Some injectors, a 1:1 fp regulator and fp guage should be your next things to get... and i think you can safely runn 600rwhp with that... might want to look into some form of alky injection.
Originally Posted by RICE ETR
That's good mph for only 4psi...that thing is gonna fly with good 60 foots, more boost and a tune I ran high 11's with less mph N/A... so your car definitely has it as is now.
I do recommend the 60's from Mototron... they have great driveability and can support plenty of power... (MM made 775/841rw on them).
Some injectors, a 1:1 fp regulator and fp guage should be your next things to get... and i think you can safely runn 600rwhp with that... might want to look into some form of alky injection.
I ran high 11's with less mph N/A... so your car definitely has it as is now. I do recommend the 60's from Mototron... they have great driveability and can support plenty of power... (MM made 775/841rw on them).
Some injectors, a 1:1 fp regulator and fp guage should be your next things to get... and i think you can safely runn 600rwhp with that... might want to look into some form of alky injection.
Any reason why you guys preffer a 1:1 over a larger ratio per say? I deffinately have been thinking of alky injection. I need to plan out the next steps
TECH Fanatic
Joined: Nov 2001
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From: Indianapolis, IN
Maybe its time to start looking into quality afternmarket pumps, rails and lines??
That turbo you have is pretty big. Even though its only got a 72mm inducer, its got a healthy compressor housing. Id imagine you are looking at some good numbers once you get that thing running full bore.
Keep us posted, and good luck!
That turbo you have is pretty big. Even though its only got a 72mm inducer, its got a healthy compressor housing. Id imagine you are looking at some good numbers once you get that thing running full bore.
Keep us posted, and good luck!
It is a 8:1 ratio FMU so I guess its already in the danger zone hehe.
I will install an inline pump to help out.
Im at a dilema on weather or not to remove the FMU when I tune it for the injectors. I like being able to just adjust boost without a reprogram. If I tune it at 8 psi I guess I could add methanol inj to reach 12 psi though so who knows.
I will install an inline pump to help out.
Im at a dilema on weather or not to remove the FMU when I tune it for the injectors. I like being able to just adjust boost without a reprogram. If I tune it at 8 psi I guess I could add methanol inj to reach 12 psi though so who knows.
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Originally Posted by NA$TY-TA
What aabout a 98 PCM????? Does it differ if its a supercharger or a turbo??
Kyle
Kyle
. Im looking into DFI after my TH400 goes in. Lokks like the 12 bolt will be ordered next month and then the 400..... then ill save for DFI or bigstuff 3. whens your beast hitting the road??
Kyle
Kyle
Originally Posted by NA$TY-TA
Im looking into DFI after my TH400 goes in. Lokks like the 12 bolt will be ordered next month and then the 400..... then ill save for DFI or bigstuff 3. whens your beast hitting the road??
Kyle
Kyle
my car should be ready very soon, but right now i am dealing with some scumbag on the member feedback section. apparently he thinks its cool to rip people off, good thing is he lives in San Antonio
58 PSI fuel pressure to start with.
8:1 FMU with lets say an average of 9# of boost.
58 + 72 = 130 PSI fuel pressure, more than double what it was designed to run. (ASSUMING your fuel pump would even get that high)
You WILL seize up an injector at this fuel pressure, (and possibly find leaks in your o-rings too) ... that why we don't like FMU's (well, that and it ghetto tuning at its finest, fine for a vehicle without computer tuning support, or limited tuning (like the HP tuners for the V6 cars,lol)
Thats just 1 of my favorite reasons to not like FMU's... well, that and seeing them fail in the past, or having a line blow off under boost, = boom motor.
Ryan
8:1 FMU with lets say an average of 9# of boost.
58 + 72 = 130 PSI fuel pressure, more than double what it was designed to run. (ASSUMING your fuel pump would even get that high)
You WILL seize up an injector at this fuel pressure, (and possibly find leaks in your o-rings too) ... that why we don't like FMU's (well, that and it ghetto tuning at its finest, fine for a vehicle without computer tuning support, or limited tuning (like the HP tuners for the V6 cars,lol)
Thats just 1 of my favorite reasons to not like FMU's... well, that and seeing them fail in the past, or having a line blow off under boost, = boom motor.
Ryan
Originally Posted by slow
58 PSI fuel pressure to start with.
8:1 FMU with lets say an average of 9# of boost.
58 + 72 = 130 PSI fuel pressure, more than double what it was designed to run. (ASSUMING your fuel pump would even get that high)
You WILL seize up an injector at this fuel pressure, (and possibly find leaks in your o-rings too) ... that why we don't like FMU's (well, that and it ghetto tuning at its finest, fine for a vehicle without computer tuning support, or limited tuning (like the HP tuners for the V6 cars,lol)
Thats just 1 of my favorite reasons to not like FMU's... well, that and seeing them fail in the past, or having a line blow off under boost, = boom motor.
Ryan
8:1 FMU with lets say an average of 9# of boost.
58 + 72 = 130 PSI fuel pressure, more than double what it was designed to run. (ASSUMING your fuel pump would even get that high)
You WILL seize up an injector at this fuel pressure, (and possibly find leaks in your o-rings too) ... that why we don't like FMU's (well, that and it ghetto tuning at its finest, fine for a vehicle without computer tuning support, or limited tuning (like the HP tuners for the V6 cars,lol)
Thats just 1 of my favorite reasons to not like FMU's... well, that and seeing them fail in the past, or having a line blow off under boost, = boom motor.
Ryan
I have always ran FMU's in all the cars Ive built, because of that reason you stated, there was no computer tuning support available. Yes pressures do run up into the 100s, but never had a problem with it. I agree its not optimal, but it does get the job done.
I will not run a FMU when I get my injectors, there is no point at that stage. But one thing that worries me is harlan said to let the maf adjust to different boost. Woudln't the computer try to achieve a 14.7 AFR insteaad of a good safe 11.0 ?
the hp tuners for the V8 cars seems to do the same as edit will do. So both will tune fine for a forced induction setup
its just the 96/97 V6 hp tuners i looked at, seems to have a very limited set of paramaters you can adjust. Better than nothing, but nowhere near the access that the V8 cars have.
Ryan
its just the 96/97 V6 hp tuners i looked at, seems to have a very limited set of paramaters you can adjust. Better than nothing, but nowhere near the access that the V8 cars have.
Ryan
Last edited by slow; Aug 3, 2004 at 08:35 AM.
I was looking over my timeslips....both runs at 4 psi of boost.
run 1:
2.20 60ft
8.49 1/8
90.40 mph
12.80 1/4
116.10 mph
run 2:
2.15 60ft
8.48 1/8
90.50 mph
12.76 1/4
117.00 mph
looks like the car made some good ground in the top end of the track even with leaning out and me lifting. Im trying to get some video up so you guys can see, it looked like I was barely rolling out of the hole, well past the 60 foot before the car recovered and finally took off. I wish the boosted list showed 60ft and 1/8 numbers so I can compare how the car is doing at its early stages....
run 1:
2.20 60ft
8.49 1/8
90.40 mph
12.80 1/4
116.10 mph
run 2:
2.15 60ft
8.48 1/8
90.50 mph
12.76 1/4
117.00 mph
looks like the car made some good ground in the top end of the track even with leaning out and me lifting. Im trying to get some video up so you guys can see, it looked like I was barely rolling out of the hole, well past the 60 foot before the car recovered and finally took off. I wish the boosted list showed 60ft and 1/8 numbers so I can compare how the car is doing at its early stages....
